Hoffman ANMV3 Small 1" ventilator designed to fit most metallic and non-metallic enclosures. Kit includes a ventilator made of fire-retardant thermoplastic material, mounting hardware, and instructions.

Hoffman ANMV6 Large 2" ventilator designed to fit most metallic and non-metallic enclosures. Kit includes a ventilator made of fire-retardant thermoplastic material, mounting hardware, and instructions.